Chapter 6: The Ultimate Shaft Length Guide

The Complete Guide to Choosing the Right Shaft Length for Your Boat

Selecting the correct shaft length is one of the most overlooked parts of buying a trolling motor—but it's also one of the most important.

You can choose the perfect brand, the right thrust rating, and all the latest GPS features, but if the shaft length isn't properly matched to your boat, your trolling motor simply won't perform as intended.

A shaft that's too short can allow the propeller to come out of the water in waves, causing a loss of thrust, poor steering, and reduced GPS anchoring performance.

A shaft that's unnecessarily long usually isn't as problematic, but it can add weight, increase cost, and make deployment and storage less convenient.

Finding the right balance ensures your trolling motor performs efficiently while giving you dependable boat control in a variety of conditions.

In this guide, you'll learn:

• Why shaft length matters
• How to measure your boat correctly
• Recommended shaft lengths by boat type
• How waves and wind affect shaft selection
• Common shaft length mistakes
• Frequently asked questions
• Expert buying recommendations

Whether you're outfitting a kayak, bass boat, bay boat, flats boat, or offshore center console, this guide will help you choose the proper shaft length with confidence.

Quick Answer

If you're looking for a general recommendation, use the chart below as a starting point.

Boat Type	Typical Shaft Length
Kayak	24–36 inches*
Canoe	30–36 inches*
Jon Boat	36–45 inches
Aluminum Fishing Boat	45–54 inches
Bass Boat	45–60 inches
Walleye Boat	45–60 inches
Multi-Species Boat	45–60 inches
Bay Boat	60–72 inches
Flats Boat	60–72 inches
Pontoon Boat	60 inches or longer
Center Console	72–120 inches

*Many kayak-specific trolling motors use specialized mounting systems and shaft designs that differ from traditional bow-mounted motors. Always follow the manufacturer's recommendations for your kayak and mounting location.

While this table provides a helpful starting point, the ideal shaft length depends on more than just your boat type.

The height of your bow above the water, where the trolling motor is mounted, the conditions you fish in, and how your boat is loaded all play a role in determining the correct shaft length.

That's why it's important to understand why shaft length matters before making your purchase.

Why Shaft Length Matters

A trolling motor works best when the propeller remains fully submerged.

As your boat moves through the water—or rises and falls with waves—the trolling motor must maintain enough depth to keep the propeller engaged.

When the propeller comes out of the water, several problems occur almost immediately:

• Loss of thrust
• Reduced steering control
• Poor GPS anchoring performance
• Increased battery consumption
• Motor cavitation
• Inconsistent boat positioning

These issues become much more noticeable when fishing in:

• Strong wind
• Boat wakes
• Rough water
• Tidal current
• Offshore conditions

For this reason, anglers who regularly fish larger bodies of water often choose a slightly longer shaft than the minimum recommendation.

The extra length helps keep the propeller submerged when the bow rises and falls, resulting in smoother steering, more reliable GPS anchoring, and better overall boat control.

What Happens If Your Shaft Is Too Short?

A shaft that's too short is far more problematic than one that's slightly too long.

As the bow lifts over waves or encounters boat wakes, the propeller can break the surface of the water.

When this happens, the trolling motor loses its ability to efficiently push and steer the boat.

Common symptoms include:

• The propeller repeatedly surfacing
• Sudden loss of steering
• Difficulty maintaining Spot-Lock® or GPS anchoring
• Increased battery drain
• Poor performance in rough water
• Frustrating boat control

Many anglers mistakenly believe their trolling motor lacks sufficient thrust when the real problem is simply that the shaft isn't long enough to keep the propeller submerged.

Choosing the proper shaft length is often one of the easiest ways to improve overall trolling motor performance.

What Happens If Your Shaft Is Too Long?

While a shaft that's too long is generally less problematic than one that's too short, selecting an excessively long shaft isn't ideal either.

An unnecessarily long shaft can:

• Add extra weight to the bow
• Increase the overall cost of the trolling motor
• Make deployment and stowing slightly less convenient
• Take up more storage space when the motor is stowed
• Be more likely to contact docks or low-hanging obstacles when maneuvering

For most anglers, choosing a shaft that's one size longer than the minimum recommendation is perfectly acceptable—especially if you regularly fish in rough water.

However, there's little benefit to selecting the longest available shaft if your boat doesn't require it.

The goal is to choose a shaft that's long enough to keep the propeller submerged in your normal fishing conditions without adding unnecessary length.

How to Measure for the Correct Shaft Length

Rather than relying solely on your boat's overall length, the most accurate method is to measure the distance from your trolling motor mounting location to the waterline.

Step 1: Load Your Boat as You Normally Fish

Before taking any measurements, load your boat as if you were heading out for a typical fishing trip.

Include:

• Batteries
• Fuel
• Tackle
• Coolers
• Safety equipment
• Electronics
• Anchors
• Passengers (if possible)
• Livewell water (if typically used)

A fully loaded boat sits lower in the water than an empty one, and measuring under realistic conditions provides the most accurate results.

Step 2: Place the Boat in the Water

Whenever possible, measure with the boat floating naturally in calm water.

This accounts for:

• Engine weight
• Battery placement
• Gear distribution
• Fuel level

If measuring on a trailer, remember that trailer position may not perfectly represent how the boat sits in the water.

Step 3: Measure from the Bow Mount to the Waterline

Using a tape measure, measure the vertical distance from the surface of the bow where the trolling motor will be mounted straight down to the waterline.

This is your mounting height.

It is the single most important measurement when determining the correct shaft length.

Step 4: Add the Recommended Propeller Depth

For optimum performance, the center of the trolling motor propeller should generally operate at least 12 inches below the water's surface.

For anglers who frequently fish rough water, large reservoirs, bays, or offshore environments, 15–20 inches below the surface often provides even better performance.

A simple guideline is:

Mounting Height + Desired Propeller Depth = Minimum Recommended Shaft Length

Example

• Mounting height: 24 inches
• Desired propeller depth: 18 inches

24 + 18 = 42 inches

In this case, the next available shaft length—typically 45 inches—would be the appropriate choice.

Factors That Can Affect Shaft Length

Even boats of the same model may require different shaft lengths depending on how they're used.

Consider these factors before making your final decision.

Bow Height

Boats with higher bows naturally require longer shafts to keep the propeller submerged.

Examples include:

• Bay boats
• Center consoles
• Offshore boats
• Some pontoons

Low-profile boats, such as bass boats and many aluminum fishing boats, generally require shorter shafts.

Wave Height

The rougher the water, the more the bow moves up and down.

Fishing in:

• Large reservoirs
• Great Lakes
• Coastal bays
• Tidal rivers
• Offshore waters

often justifies selecting the next longer shaft length.

Boat Loading

A heavily loaded boat may sit lower in the water, while removing passengers, fuel, or gear can cause the bow to ride higher.

If your boat's load changes significantly throughout the season, choose a shaft length that accommodates your most demanding conditions.

Fishing Style

Your fishing style also influences shaft selection.

For example:

• Anglers who spend hours using GPS anchoring over offshore structure benefit from maintaining consistent propeller depth.
• Bass anglers making frequent, short moves between docks may prioritize quick deployment and a more compact setup.
• Coastal anglers who fish in wind and tidal current often prefer a longer shaft to improve boat control in changing conditions.

Rule of Thumb vs. Measuring

You'll often find online charts that recommend a shaft length based only on boat length.

While these charts are useful as a starting point, they don't account for:

• Bow height
• Boat design
• Water conditions
• Mounting location
• Fishing style
• Propeller depth

Whenever possible, use an actual measurement rather than relying solely on generalized recommendations.

A few minutes with a tape measure can prevent years of frustration on the water.

Key Takeaway

The correct shaft length isn't determined by your boat's overall length—it's determined by how high the trolling motor sits above the water and the conditions in which you fish.

Measure carefully, consider where you fish most often, and when you're between two available shaft lengths, it's usually safer to choose the slightly longer option—especially for anglers who regularly encounter wind, waves, or current.

Recommended Shaft Length by Boat Type

Every boat is different, but certain shaft lengths have proven to work well across specific boat categories. The recommendations below assume the trolling motor is mounted on the bow and the boat is loaded for normal fishing conditions.

If you regularly fish in heavy wind, rough water, or strong current, choosing the next longer shaft length is often the best decision.

Kayaks

Recommended Shaft Length

24–36 inches (depending on the mounting system)

Kayaks typically have a very low profile, placing the trolling motor close to the water.

Many kayak anglers use stern, side, or specialized bow mounts that require shorter shafts than traditional fishing boats.

Best For

• Small lakes
• Rivers
• Protected bays
• Electric-only reservoirs

Tips

• Follow the trolling motor manufacturer's recommendations for your specific kayak mount.
• Ensure the propeller remains submerged when sitting in the kayak.
• Longer isn't necessarily better on compact watercraft.

Canoes

Recommended Shaft Length

30–36 inches

Canoes ride low in the water and usually require only a short shaft.

A lightweight trolling motor helps preserve stability while providing plenty of control.

Jon Boats

Recommended Shaft Length

36–45 inches

Jon boats generally have low bows, making shorter shafts ideal.

Choose the longer end of the range if you fish larger lakes or rivers with frequent boat wakes.

Ideal for:

• Electric-only lakes
• Farm ponds
• Rivers
• Small reservoirs

Aluminum Fishing Boats

Recommended Shaft Length

45–54 inches

Aluminum fishing boats vary significantly in bow height.

For boats used primarily on inland lakes, a 45-inch shaft is often sufficient.

If you regularly fish larger reservoirs or encounter rough conditions, a 54-inch shaft provides additional versatility.

Bass Boats

Recommended Shaft Length

Boat Length	Recommended Shaft
17–18 ft	45 inches
18–20 ft	45–52 inches
20–21+ ft	52–60 inches

Bass boats are designed with relatively low bows, allowing shorter shafts than many saltwater boats.

Tournament anglers often choose a slightly longer shaft because they spend extended periods using GPS anchoring in windy conditions.

Popular choices include:

• Minn Kota Ultrex® QUEST™
• Minn Kota Terrova®
• Garmin Force®
• Power-Pole MOVE® ZR

Walleye & Multi-Species Boats

Recommended Shaft Length

45–60 inches

These boats often fish open water where wind becomes a significant factor.

Many anglers prefer a 60-inch shaft to improve boat control while trolling or holding on offshore structure.

Bay Boats

Recommended Shaft Length

Boat Length	Recommended Shaft
18–20 ft	60 inches
20–22 ft	72 inches
22–24 ft	72–84 inches

Bay boats typically have higher bows than bass boats and frequently encounter chop, tidal current, and wind.

A slightly longer shaft helps maintain propeller depth while improving GPS anchoring performance.

Popular options include:

• Garmin Force Kraken®
• Rhodan® HD GPS Anchor+
• Minn Kota Riptide Terrova® QUEST™
• Power-Pole MOVE® PV

Flats Boats

Recommended Shaft Length

Boat Length	Recommended Shaft
17–19 ft	60 inches
19–21 ft	72 inches
21–24 ft	72–84 inches

Flats boats are built for shallow-water fishing but are often exposed to wind across open bays.

A longer shaft provides more consistent propeller depth while sight fishing or using GPS anchoring.

Pontoon Boats

Recommended Shaft Length

Boat Length	Recommended Shaft
18–20 ft	60 inches
20–22 ft	60–72 inches
22–24+ ft	72 inches

Because pontoons present a large profile to the wind, they often benefit from a longer shaft than similarly sized fishing boats.

Center Consoles

Recommended Shaft Length

Boat Length	Recommended Shaft
22–24 ft	72 inches
24–26 ft	84 inches
26–30 ft	96 inches
30+ ft	108–120 inches

Center consoles generally require the longest trolling motor shafts due to:

• Higher freeboard
• Larger waves
• Offshore use
• Greater bow movement

Today's premium saltwater trolling motors are available with shafts up to 120 inches, allowing anglers to maintain boat control even in demanding offshore conditions.

Offshore Boats

Large offshore fishing boats face the toughest conditions.

These vessels frequently encounter:

• Ocean swells
• Strong current
• Heavy wind
• Large boat wakes

For these applications, shaft lengths of 84–120 inches are common, depending on the boat's bow height and intended use.

Models like the Garmin Force Kraken, Rhodan HD GPS Anchor+, and Minn Kota Riptide Instinct QUEST™ are specifically designed to meet these demands.

Saltwater Boats Usually Need Longer Shafts

Many first-time buyers notice that saltwater trolling motors are available with much longer shafts than freshwater models.

That's because saltwater boats typically have:

• Higher bows
• Greater freeboard
• Larger wave exposure
• More aggressive fishing conditions

For example:

• A 20-foot bass boat may perform perfectly with a 52-inch shaft.
• A similarly sized bay boat may require a 72-inch shaft.
• A 26-foot center console may need an 84-inch or 96-inch shaft.

The difference isn't boat length—it's the distance from the trolling motor mount to the water and the conditions the boat operates in.

Quick Reference Chart

Boat Type	Most Common Shaft Length
Kayak	24–36 in*
Canoe	30–36 in
Jon Boat	36–45 in
Aluminum Boat	45–54 in
Bass Boat	45–60 in
Walleye Boat	45–60 in
Bay Boat	60–72 in
Flats Boat	60–72 in
Pontoon	60–72 in
Center Console	72–120 in

*Depends heavily on the mounting system and motor design.

These recommendations provide an excellent starting point, but your final decision should always consider your boat's bow height, the waters you fish, and how your boat is loaded. When in doubt, measuring your boat and consulting the manufacturer's shaft length guidance will give you the most accurate result.

Common Shaft Length Mistakes (and How to Avoid Them)

Even experienced anglers occasionally choose the wrong shaft length. Fortunately, most mistakes can be avoided with a few simple measurements and an understanding of how your boat will actually be used.

Here are the most common shaft length mistakes—and how to avoid them.

Mistake #1: Buying Based Only on Boat Length

One of the biggest misconceptions is that every 20-foot boat needs the same shaft length.

That's simply not true.

For example:

• A 20-foot bass boat may perform perfectly with a 52-inch shaft.
• A 20-foot bay boat often requires a 72-inch shaft.
• A 20-foot pontoon boat may also benefit from a 60- to 72-inch shaft.

The difference isn't the length of the boat—it's the height of the bow above the water and the conditions the boat is designed to handle.

Better approach: Measure from the trolling motor mounting surface to the waterline, then add the recommended propeller depth.

Mistake #2: Ignoring Bow Height

Bow height has a much greater impact on shaft length than many anglers realize.

Two boats with identical overall lengths can have dramatically different freeboard.

Higher bows are common on:

• Bay boats
• Center consoles
• Offshore boats
• Many pontoons

These boats almost always require longer shafts than low-profile bass boats or aluminum fishing boats.

Mistake #3: Choosing the Shortest Available Shaft

Many buyers assume a shorter shaft is lighter, easier to store, and therefore the better option.

In reality, a shaft that's too short can cause:

• The propeller to ventilate by breaking the water's surface
• Reduced steering response
• Poor GPS anchoring performance
• Increased battery consumption
• Inconsistent boat control

If you're between two available shaft lengths, the slightly longer option is often the better choice—especially if you fish in rough water.

Mistake #4: Forgetting About Wind and Waves

Calm-water measurements don't always tell the whole story.

A shaft that works perfectly on a small inland lake may struggle when you're fishing:

• Large reservoirs
• The Great Lakes
• Coastal bays
• Tidal rivers
• Offshore reefs

As the bow rises and falls, a short shaft may allow the propeller to leave the water repeatedly.

If rough conditions are common where you fish, choose a shaft length that keeps the propeller submerged even when the bow is moving.

Mistake #5: Measuring an Empty Boat

Many people measure their boat while it's sitting on a trailer with little or no gear on board.

But once you add:

• Fuel
• Batteries
• Tackle
• Coolers
• Electronics
• Passengers
• Livewell water

the boat sits differently in the water.

For the most accurate results, measure your boat in the water with a typical fishing load whenever possible.

Mistake #6: Not Considering GPS Anchoring

Modern trolling motors do much more than simply move your boat.

Features such as:

• Minn Kota® Spot-Lock®
• Garmin® Anchor Lock
• Rhodan® GPS Anchor+
• Power-Pole® Anchor Mode

all rely on the propeller remaining submerged to make constant, precise steering corrections.

A shaft that's too short can reduce the effectiveness of these advanced positioning systems, particularly in windy or rough conditions.

Mistake #7: Assuming One Recommendation Fits Every Brand

Different manufacturers offer different shaft lengths and mounting designs.

For example:

• Minn Kota offers common shaft lengths such as 45", 52", 60", 72", 87", and 100" depending on the model.
• Garmin Force Kraken is available in multiple long-shaft options designed for larger saltwater boats.
• Rhodan HD GPS Anchor+ includes extended shaft lengths for bay boats, center consoles, and offshore applications.
• Power-Pole MOVE models are available in shaft lengths tailored to both freshwater and saltwater fishing.

When comparing brands, focus on selecting the shaft length that best matches your boat—not simply the closest available number.

Mistake #8: Thinking "Longer Is Always Better"

While a shaft that's slightly longer than necessary is usually preferable to one that's too short, there are practical limits.

An excessively long shaft can:

• Add unnecessary weight
• Increase cost
• Require more storage space
• Make deployment less convenient
• Be more prone to contacting docks or other obstacles

The goal isn't to buy the longest shaft available—it's to buy the shaft that's properly matched to your boat and fishing conditions.

The Best Rule to Follow

If you remember only one thing from this guide, remember this:

Choose a shaft length based on your mounting height and the waters you fish—not simply your boat's overall length.

Taking a few extra minutes to measure your boat and consider typical fishing conditions can prevent years of frustration and help your trolling motor perform exactly as it was designed.

Quick Checklist Before You Buy

Before placing your order, ask yourself:

• ✓ Have I measured from the mounting surface to the waterline?
• ✓ Is my boat loaded as it normally will be?
• ✓ Do I regularly fish in wind or rough water?
• ✓ Will my propeller remain submerged during waves and boat wakes?
• ✓ Am I choosing the shaft length that matches my boat—not just my boat's length?

If you can confidently answer "yes" to these questions, you're well on your way to selecting the right shaft length for years of dependable performance.

Brand-Specific Shaft Length Guide

Once you've determined the ideal shaft length for your boat, the next step is choosing a trolling motor that's available in that size.

Each manufacturer offers different shaft lengths depending on the model and the type of fishing it's designed for.

The overview below highlights the most common options from today's leading trolling motor brands.

Note: Available shaft lengths may vary by model year and configuration. Always verify the specifications for the exact model you're considering.

Minn Kota®

Minn Kota offers one of the widest selections of shaft lengths in the industry, with options for everything from small inland lakes to offshore saltwater fishing.

Freshwater Models

Ultrex® QUEST™

Typical shaft lengths:

• 45 inches
• 52 inches
• 60 inches

Best for:

• Bass boats
• Multi-species boats
• Walleye boats

Ulterra® QUEST™

Typical shaft lengths:

• 60 inches
• 72 inches

Best for:

• Larger freshwater boats
• Anglers who want Auto Stow & Deploy
• Big-water fishing

Terrova®

Typical shaft lengths:

• 45 inches
• 54 inches
• 60 inches

Best for:

• Aluminum fishing boats
• Bass boats
• Multi-species boats

Saltwater Models

Riptide Terrova® QUEST™

Typical shaft lengths:

• 60 inches
• 72 inches
• 87 inches
• 100 inches

Ideal for:

• Bay boats
• Flats boats
• Center consoles

Riptide Instinct® QUEST™

Typical shaft lengths:

• 60 inches
• 72 inches
• 87 inches
• 100 inches

Best for:

• Coastal anglers
• Offshore structure fishing
• Boats that benefit from Auto Stow & Deploy

Garmin®

Garmin's brushless trolling motors are known for exceptional efficiency and seamless integration with Garmin chartplotters and LiveScope™.

Garmin Force®

Typical shaft lengths:

• 50 inches
• 57 inches

Best for:

• Freshwater bass boats
• Tournament anglers
• Multi-species boats

Garmin Force Kraken™

Typical shaft lengths:

• 48 inches
• 63 inches
• 75 inches
• 90 inches
• 110 inches

Available in both black and white finishes.

Best for:

• Bay boats
• Center consoles
• Offshore fishing boats
• Larger freshwater applications

The wide range of shaft lengths makes the Force Kraken one of the most versatile trolling motors available today.

Rhodan®

Rhodan specializes in GPS-controlled saltwater trolling motors designed for demanding coastal environments.

Rhodan HD GPS Anchor+

Typical shaft lengths:

• 48 inches
• 60 inches
• 72 inches
• 84 inches
• 96 inches
• 108 inches
• 120 inches

Available in both 24V and 36V configurations (model dependent).

Best for:

• Bay boats
• Offshore center consoles
• Charter boats
• Commercial fishing applications

Rhodan's extended shaft offerings make it an excellent choice for larger vessels operating in rougher conditions.

Power-Pole®

Power-Pole has expanded from shallow-water anchors into premium brushless trolling motors designed for both freshwater and saltwater anglers.

MOVE® ZR

Typical shaft lengths:

• 45 inches
• 52 inches
• 60 inches

Best for:

• Bass boats
• Tournament anglers
• Freshwater applications

MOVE® PV

Typical shaft lengths:

• 36 inches
• 45 inches
• 52 inches
• 60 inches
• 72 inches
• 84 inches
• 96 inches
• 110 inches

Available in configurations designed for:

• Inshore fishing
• Offshore fishing
• Bay boats
• Center consoles

The MOVE PV lineup offers one of the broadest shaft length ranges available, making it suitable for everything from smaller inshore boats to large offshore vessels.

Which Brand Is Right for Your Boat?

While shaft length is critical, it should be considered alongside the features and ecosystem each brand offers.

Brand	Best Known For	Common Applications
Minn Kota	Spot-Lock®, One-Boat Network®, extensive model range	Freshwater and saltwater
Garmin	Brushless technology, LiveScope™ integration, Force Kraken	Freshwater and coastal fishing
Rhodan	GPS Anchor+, long-shaft saltwater models	Bay boats, center consoles, offshore
Power-Pole	Brushless performance, C-Monster®, ProNav	Bass boats, bay boats, offshore

The best trolling motor isn't determined by shaft length alone. Consider how each brand integrates with your existing electronics, the waters you fish, and the features that matter most to your style of fishing.

Need Help Choosing?

If you're still unsure which shaft length or model is right for your boat, explore these additional resources in our Learning Center:

• The Ultimate Trolling Motor Buying Guide
• How Much Trolling Motor Thrust Do I Need?
• Freshwater vs. Saltwater Trolling Motors
• Brushless vs. Brushed Trolling Motors
• 12V vs. 24V vs. 36V Systems
• Minn Kota vs. Garmin vs. Rhodan vs. Power-Pole

Combining the information from those guides with the recommendations in this article will help you choose a trolling motor that fits your boat, your fishing style, and your long-term goals with confidence.

Expert Buyer's Checklist: Choosing the Right Shaft Length

By now, you understand why shaft length is one of the most important factors when selecting a trolling motor. Before placing your order, take a few minutes to review this checklist.

If you can confidently answer each question, you're well on your way to choosing a trolling motor that will perform reliably for years to come.

✓ Identify Where You Fish Most Often

Start by thinking about the conditions you encounter on a typical fishing trip.

☐ Small lakes and ponds

☐ Large reservoirs

☐ Rivers with current

☐ Bays and estuaries

☐ Coastal waters

☐ Offshore

The rougher the water, the more important it becomes to choose a shaft length that keeps the propeller submerged.

✓ Measure Your Boat Correctly

Have you measured the distance from the trolling motor mounting surface to the waterline?

☐ Yes

☐ Not yet

Remember, this measurement is far more accurate than relying on your boat's overall length.

For the best results:

• Measure with the boat floating in the water.
• Load it as you normally fish.
• Include fuel, batteries, gear, and passengers when possible.

✓ Consider Your Boat Type

Different boats require different shaft lengths, even if they are the same overall length.

Confirm your boat type:

☐ Kayak

☐ Canoe

☐ Jon Boat

☐ Aluminum Fishing Boat

☐ Bass Boat

☐ Walleye Boat

☐ Multi-Species Boat

☐ Bay Boat

☐ Flats Boat

☐ Pontoon Boat

☐ Center Console

✓ Think About Typical Water Conditions

Ask yourself:

☐ Do I fish in heavy wind?

☐ Do I regularly encounter boat wakes?

☐ Do I fish tidal rivers or coastal bays?

☐ Do I spend time offshore?

If you answered "yes" to any of these questions, choosing the next longer shaft length is often the better decision.

✓ Will You Use GPS Anchoring?

Modern trolling motors continuously adjust steering and thrust while holding your position.

Features like:

• Minn Kota® Spot-Lock®
• Garmin® Anchor Lock
• Rhodan® GPS Anchor+
• Power-Pole® Anchor Mode

all perform best when the propeller stays fully submerged.

If GPS anchoring is one of the primary reasons you're purchasing a trolling motor, don't undersize the shaft.

✓ Choose the Right Shaft Length

As a quick reference:

Boat Type	Common Shaft Length
Kayaks	24–36 in*
Jon Boats	36–45 in
Aluminum Boats	45–54 in
Bass Boats	45–60 in
Bay Boats	60–72 in
Flats Boats	60–72 in
Pontoons	60–72 in
Center Consoles	72–120 in

*Varies by kayak design and mounting system.

These ranges are excellent starting points, but your actual measurement should always guide your final decision.

✓ Check Brand Availability

Not every trolling motor is offered in every shaft length.

Before purchasing, confirm that your preferred model is available in the size your boat requires.

For example:

• Minn Kota offers different shaft lengths across the Terrova®, Ultrex®, Ulterra®, and Riptide series.
• Garmin Force Kraken® is available in extended shaft lengths for larger saltwater boats.
• Rhodan® specializes in long-shaft GPS trolling motors for coastal and offshore fishing.
• Power-Pole MOVE® includes options for both freshwater and saltwater applications.

Choosing the correct shaft length first makes selecting the right model much easier.

✓ Think About the Future

Before making your final decision, ask yourself:

☐ Will I upgrade to a larger boat?

☐ Will I start fishing saltwater?

☐ Will I fish larger reservoirs or coastal waters?

☐ Do I want room to grow without replacing my trolling motor?

Planning ahead can help you avoid an expensive upgrade later.

Final Pre-Purchase Checklist

Before clicking "Add to Cart," make sure you can confidently answer yes to each of the following:

✓ I measured my mounting height.

✓ I considered my normal fishing conditions.

✓ I selected the correct shaft length for my boat.

✓ My chosen trolling motor is available in that shaft length.

✓ My shaft will keep the propeller submerged in rough conditions.

✓ My choice supports the way I fish today—and where I plan to fish tomorrow.

If you've checked every box, you can feel confident that you've selected a shaft length that will provide reliable boat control, better GPS anchoring performance, and a more enjoyable day on the water.

Key Takeaway

When anglers experience poor trolling motor performance, the problem isn't always thrust or technology.

Very often, it's simply an incorrectly sized shaft.

Taking the time to measure your boat, understand your fishing conditions, and select the proper shaft length will help you get the maximum performance from your investment—whether you're fishing a quiet inland lake or chasing offshore pelagics in challenging conditions.